Wasn't working for me until I fixed it.
Turns out gcc really doesn't like giving its name out.
Most of the time it reads argv[0].

Previously took only the filename, so the directory
component was stripped. This broke dependencies for
basically every file.

P_ZMovement: add a P_MobjWasRemoved check after P_CheckPosition, so we can bail out if the mobj was removed (by Lua most likely)

I found this easier than trying to adjust the makefile, as it uses the same thing to automatically generate the various NO* compile options.

This was done by storing flag-for-removal status as a boolean inside the player struct.
Bot players are instead removed at the start of G_Ticker, rather than being removed immediately by G_RemovePlayer.

Bugfix - Fix sporadically occurring incorrect userdata types in Lua, caused by previously loaded userdata which didn't get invalidated in previous sessions.

Invalidate userdata for line and mapthing args.
Invalidate userdata for slopes and their normal, origin and direction vectors.

Expose P_TryCameraMove and P_TeleportCameraMove, disallow write access to camera.x and camera.y, allow write access to camera.height and camera.radius

(Demos do not call CL_Reset BTW.)

And quote variable name.